Last Update: 424 AM AST Sun Sep 6 2026

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San Juan, PR Local Forecast Office

25NM WNW San Juan PR

Marine Zone Forecast


Today
East winds 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots this afternoon. Seas 2 to 3 feet. Wave detail: east 3 feet at 7 seconds. Scattered showers with isolated thunderstorms early this morning, then isolated showers late this morning. Scattered showers with isolated thunderstorms this afternoon.
Tonight
Southeast winds 5 to 10 knots. Seas around 3 feet. Wave detail: northeast 3 feet at 8 seconds. Scattered showers in the evening.
Monday
East winds 10 to 15 knots with gusts up to 25 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: east 3 feet at 7 seconds and north 1 foot at 9 seconds. Scattered showers in the afternoon.
Monday Night
East winds 10 to 15 knots with gusts up to 20 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: east 3 feet at 7 seconds and northeast 2 feet at 11 seconds. Scattered showers in the evening.
Tuesday
East winds 10 to 15 knots with gusts up to 20 knots, increasing to 15 to 20 knots with gusts up to 30 knots in the afternoon. Seas 3 to 4 feet, occasionally to 5 feet. Wave detail: east 4 feet at 6 seconds and northeast 2 feet at 11 seconds. Scattered showers in the morning.
Tuesday Night
East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 4 to 5 feet, occasionally to 6 feet. Wave detail: east 4 feet at 6 seconds and northeast 2 feet at 11 seconds.
Wednesday
East winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet. Scattered showers.
Wednesday Night
East winds 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Seas 4 to 5 feet, occasionally to 6 feet. Scattered showers.
Thursday
East winds 10 to 15 knots, increasing to 15 to 20 knots in the afternoon. Seas 4 to 5 feet, occasionally to 6 feet. Scattered showers.
Thursday Night
East winds 10 to 15 knots. Seas 4 to 5 feet, occasionally to 6 feet.

winds and seas higher in and near thunderstorms.




Winds and seas higher in and near thunderstorms.
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424 AM AST Sun Sep 6 2026
 
 

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